The device is Lenovo Tab 2 A8-50LC I flashed the device with a (apparently) TWRP recovery image.
./fastboot flash recovery recovery.img target reported max download size of 134217728 bytes sending 'recovery' (10454 KB)... OKAY [ 0.904s] writing 'recovery'... OKAY [ 0.306s] finished. total time: 1.209s
./fastboot reboot rebooting... finished. total time: 0.052s
But the device can not load TWRP or Android and restarts consequently. No power-off, volume-up or down or any combinations work here. Nothing works:
./adb reboot recovery error: no devices found ./fastboot devices ./adb reboot bootloader error: no devices found
The only way is to disconnect the battery from the board. Any suggestions highly appreciated.